Professional Manufactur-custom Pcb Assembly

- Dec 22, 2016-

Professional Manufactur-custom Pcb Assembly

Legend printing

A legend is often printed on one or both sides of the PCB. It contains the component designators, switch settings, test points and other indications helpful in assembling, testing and servicing the circuit board.

There are three methods to print the legend.

  1. Silk screen printing epoxy ink was the established method. It was so common that legend is often misnamed silk or silkscreen.

  2. Liquid photo imaging is a more accurate method than screen printing.

  3. Ink jet printing is new but increasingly used. Ink jet can print variable data such as a text or bar code with a serial number.



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